[go: up one dir, main page]

WO2019198479A1 - Procédé de malaxage et matériau malaxé - Google Patents

Procédé de malaxage et matériau malaxé Download PDF

Info

Publication number
WO2019198479A1
WO2019198479A1 PCT/JP2019/012613 JP2019012613W WO2019198479A1 WO 2019198479 A1 WO2019198479 A1 WO 2019198479A1 JP 2019012613 W JP2019012613 W JP 2019012613W WO 2019198479 A1 WO2019198479 A1 WO 2019198479A1
Authority
WO
WIPO (PCT)
Prior art keywords
raw material
screw
extruder
passage
kneaded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/012613
Other languages
English (en)
Japanese (ja)
Inventor
孝文 鮫島
佳夫 飯塚
華穂 長田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2018109050A external-priority patent/JP7093681B2/ja
Application filed by Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to CN201980023661.7A priority Critical patent/CN112203818B/zh
Priority to KR1020207028438A priority patent/KR102390358B1/ko
Priority to US17/045,242 priority patent/US20210362374A1/en
Publication of WO2019198479A1 publication Critical patent/WO2019198479A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
    • B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/426—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix with consecutive casings or screws, e.g. for charging, discharging, mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/421—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix with screw and additionally other mixing elements on the same shaft, e.g. paddles, discs, bearings, rotor blades of the Banbury type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
    • B29B7/429—Screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/487—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with consecutive casings or screws, e.g. for feeding, discharging, mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B29B7/489—Screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B29B7/726—Measuring properties of mixture, e.g. temperature or density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/86—Component parts, details or accessories; Auxiliary operations for working at sub- or superatmospheric pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/402—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/005—Processes for mixing polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/203—Solid polymers with solid and/or liquid additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/405—Intermeshing co-rotating screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/55—Screws having reverse-feeding elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2509/00—Use of inorganic materials not provided for in groups B29K2503/00 - B29K2507/00, as filler
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0089—Impact strength or toughness
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/16—Ethene-propene or ethene-propene-diene copolymers

Definitions

  • Embodiments of the present invention relate to a kneading method and a kneaded product.
  • Polypropylene resin compositions are widely used in various industrial fields because of their excellent mechanical properties.
  • a polypropylene resin containing ethylene, propylene, diene rubber, talc, or the like is used for automobile exterior members that require high rigidity and impact strength.
  • Patent Document 1 a technique for producing a resin composition by kneading a resin or an additive, a technique for producing a resin composition by continuously kneading a pre-kneaded molten raw material is disclosed (Patent Document 1). ).
  • a screw that conveys a raw material while being kneaded is formed between a screw main body that rotates about an axis along the raw material conveying direction, an outer peripheral surface of the screw main body, and an inner peripheral surface of the cylinder.
  • a passage through which the raw material flowing in from the inlet flows toward the outlet is disclosed.
  • path is provided over the barrier part inside the screw main body.
  • the problem to be solved by the present invention is to provide a kneading method and a kneaded material that can provide a kneaded material having high mechanical properties.
  • the kneading method of the embodiment is a kneading method in which the raw material is conveyed while being kneaded by a screw of an extruder, and the produced kneaded material is continuously discharged, wherein the screw is along the conveying direction of the raw material.
  • a screw main body that rotates about a straight axis, and an axial direction of the screw main body.
  • the raw material is distributed along the outer circumferential surface of the screw main body in the circumferential direction as the screw main body rotates.
  • a transport section that transports in the axial direction, a barrier section that is provided in the screw main body and restricts the transport of the raw material in the axial direction at a position adjacent to the transport section, and straddles the barrier section inside the screw main body.
  • a passage that communicates an inlet and an outlet that are open on the outer peripheral surface of the screw body, and the raw material is transported along a transport path, and the raw material is The barrier
  • the pressure is increased by restricting the conveyance by the conveyance unit, and the raw material whose pressure is increased is caused to flow into the passage from the inlet located in the conveyance unit, and the raw material that has flowed into the passage is
  • a flow path step for flowing the raw material flowing through the passage toward the outlet in the same direction as the transfer direction by the transfer section and flowing out from the outlet to the outer periphery of the screw body, and the raw material is It is a polypropylene resin composition containing polypropylene and olefin rubber.
  • FIG. 1 is a schematic diagram showing a high shearing device (kneading device) for realizing the kneading method of the present embodiment.
  • FIG. 2 is a cross-sectional view of the first extruder.
  • FIG. 3 is a perspective view showing a state in which two screws of the first extruder are engaged with each other.
  • FIG. 4 is a sectional view of the third extruder.
  • FIG. 5 is a cross-sectional view of the second extruder.
  • FIG. 6 is a cross-sectional view of the second extruder showing both the barrel and the screw in cross section.
  • FIG. 7 is a sectional view taken along line F7-F7 in FIG.
  • FIG. 8 is a perspective view of the cylinder.
  • FIG. 1 is a schematic diagram showing a high shearing device (kneading device) for realizing the kneading method of the present embodiment.
  • FIG. 2 is a cross-sectional view
  • FIG. 9 is a side view showing the flow direction of the raw material with respect to the screw.
  • FIG. 10 is a sectional view of the second extruder showing the flow direction of the raw material when the screw rotates.
  • FIG. 11 is a diagram showing the evaluation results.
  • FIG. 12 is an image of the kneaded material produced in Example 1.
  • FIG. 13 is an image of the material.
  • FIG. 1 is a schematic view showing an example of a high shear processing apparatus 1000 for realizing the kneading method of the present embodiment.
  • the high shear processing apparatus 1000 includes a first extruder (processor) 2, a second extruder 3, and a third extruder (defoamer) 4.
  • the 1st extruder 2, the 2nd extruder 3, and the 3rd extruder 4 are mutually connected in series.
  • the first extruder 2 is a processing machine for preliminarily kneading and melting materials such as two types of incompatible resins.
  • Two types of resins are, for example, polypropylene (PP) and olefin rubber.
  • the olefin rubber is ethylene / propylene / diene rubber (EPDM).
  • the material thrown into the 1st extruder may contain the other material further.
  • talc hydrous magnesium silicate (Mg 3 Si 4 O 10 (OH) 2 )
  • magnesium silicate Mg 3 Si 4 O 10 (OH) 2 )
  • the like may be included.
  • the first extruder 2 may be supplied with each material, or may be supplied in the form of a pellet containing at least two materials.
  • a co-rotating twin screw extruder is used as the first extruder 2 in order to enhance the degree of kneading / melting of the supplied material.
  • the twin-screw extruder includes a barrel 6 and two screws 7 a and 7 b accommodated in the barrel 6.
  • the barrel 6 includes a cylinder portion 8 having a shape obtained by combining two cylinders.
  • the supplied material is continuously supplied from the supply port 9 provided at one end of the barrel 6 to the cylinder portion 8.
  • the barrel 6 incorporates a heater for melting the resin contained in the supplied material.
  • the screws 7a and 7b are accommodated in the cylinder portion 8 in a state of being engaged with each other.
  • the screws 7a and 7b receive torque transmitted from a motor (not shown) and are rotated in the same direction.
  • the screws 7 a and 7 b include a feed unit 11, a kneading unit 12, and a pumping unit 13, respectively.
  • the feed unit 11, the kneading unit 12 and the pumping unit 13 are arranged in a line along the axial direction of the screws 7a and 7b.
  • the feed unit 11 has a flight 14 twisted in a spiral.
  • the flights 14 of the screws 7a and 7b rotate while meshing with each other, and convey the material supplied from the supply port 9 toward the kneading unit 12.
  • the kneading part 12 has a plurality of disks 15 arranged in the axial direction of the screws 7a and 7b.
  • the disks 15 of the screws 7a and 7b rotate while facing each other and preliminarily knead the raw materials sent from the feed unit 11.
  • the kneaded material is fed into the pumping unit 13 by the rotation of the screws 7a and 7b.
  • the pumping unit 13 has a flight 16 twisted in a spiral.
  • the flights 16 of the screws 7 a and 7 b rotate while meshing with each other, and push the premixed raw material from the discharge end of the barrel 6.
  • the material supplied to the feed part 11 of the screws 7a and 7b is melted by receiving the heat generated by the shear and the heat of the heater accompanying the rotation of the screws 7a and 7b.
  • the material containing the resin melted by the preliminary kneading in the twin screw extruder constitutes the blended raw material.
  • the raw material is continuously supplied to the second extruder 3 from the discharge end of the barrel 6 as indicated by an arrow A in FIG.
  • the raw material supplied to the second extruder 3 is a polypropylene resin composition that has been melted and preliminarily kneaded.
  • the polypropylene resin composition contains polypropylene and olefin rubber.
  • a polypropylene resin composition is a thermoplastic resin mainly composed of polypropylene (PP) and ethylene / propylene / diene rubber (EPDM).
  • the polypropylene resin composition is a composition in which EPDM is a continuous phase and PP is dispersed in the continuous phase.
  • the polypropylene-based resin composition includes PP in an amount of 25 to 90% by mass, ethylene / propylene / diene rubber in an amount of 0.1 to 40% by mass, talc (hydrous magnesium silicate (Mg 3 Si 4 O 10 (OH) 2 )) is a thermoplastic resin containing 5% by mass or more and 55% by mass or less.
  • the material supplied to the 1st extruder 2 should just be the constituent material of the said raw material which is the said polypropylene resin composition.
  • the first extruder 2 by constituting the first extruder 2 as a twin screw extruder, not only the resin contained in the material supplied to the first extruder 2 is melted but also a shearing action is imparted to the resin. be able to. For this reason, when the raw material kneaded by the first extruder 2 and supplied to the second extruder 3 is supplied to the second extruder 3, it is preliminarily stored in the first extruder 2. It is melted by kneading and kept at an optimum viscosity. Moreover, when the raw material is continuously supplied to the second extruder 3 by configuring the first extruder 2 as a twin screw extruder, a predetermined amount of the raw material is stably supplied per unit time. be able to. Therefore, the burden on the second extruder 3 for kneading the raw materials in earnest can be reduced.
  • the second extruder 3 is an element for generating a kneaded material having a microscopic dispersion structure in which the raw material polymer component is nano-dispersed.
  • a single screw extruder is used as the second extruder 3.
  • the single-screw extruder includes a barrel 20 and a single screw 21.
  • the screw 21 has a function of repeatedly imparting a shearing action and an elongation action to the melted raw material.
  • the configuration of the second extruder 3 including the screw 21 will be described in detail later.
  • the third extruder 4 is an element for sucking and removing gas components contained in the kneaded material discharged from the second extruder 3.
  • a single screw extruder is used as the third extruder 4.
  • the single-screw extruder includes a barrel 22 and a single vent screw 23 accommodated in the barrel 22.
  • the barrel 22 includes a straight cylindrical cylinder portion 24.
  • the kneaded material extruded from the second extruder 3 is continuously supplied to the cylinder portion 24 from one end portion along the axial direction of the cylinder portion 24.
  • the barrel 22 has a vent port 25.
  • the vent port 25 is opened at an intermediate portion along the axial direction of the cylinder portion 24 and is connected to the vacuum pump 26. Further, the other end portion of the cylinder portion 24 of the barrel 22 is closed by a head portion 27.
  • the head unit 27 has a discharge port 28 through which the kneaded material is discharged.
  • the vent screw 23 is accommodated in the cylinder portion 24.
  • the vent screw 23 receives a torque transmitted from a motor (not shown) and is rotated in one direction.
  • the vent screw 23 has a flight 29 that is spirally twisted.
  • the flight 29 rotates integrally with the vent screw 23 and continuously conveys the kneaded material supplied to the cylinder portion 24 toward the head portion 27.
  • the kneaded material is conveyed to a position corresponding to the vent port 25, it receives the vacuum pressure of the vacuum pump 26. That is, by pulling the inside of the cylinder part 24 to a negative pressure with a vacuum pump, gaseous substances and other volatile components contained in the kneaded product are continuously sucked and removed from the kneaded product.
  • the kneaded material from which gaseous substances and other volatile components have been removed is continuously discharged from the discharge port 28 of the head portion 27.
  • the barrel 20 of the second extruder 3 is a straight cylinder and is disposed horizontally.
  • the barrel 20 is divided into a plurality of barrel elements 31.
  • Each barrel element 31 has a cylindrical through hole 32.
  • the barrel element 31 is integrally coupled by bolt fastening so that the respective through holes 32 are coaxially continuous.
  • the through holes 32 of the barrel element 31 cooperate with each other to define a cylindrical cylinder portion 33 inside the barrel 20.
  • the cylinder part 33 extends in the axial direction of the barrel 20.
  • a supply port 34 is formed at one end along the axial direction of the barrel 20.
  • the supply port 34 communicates with the cylinder part 33, and the raw material blended by the first extruder 2 is continuously supplied to the supply port 34.
  • the barrel 20 includes a heater (not shown).
  • the heater adjusts the temperature of the barrel 20 so that the temperature of the barrel 20 becomes an optimum value for kneading the raw materials.
  • the barrel 20 includes a refrigerant passage 35 through which a refrigerant such as water or oil flows.
  • the refrigerant passage 35 is disposed so as to surround the cylinder portion 33. The refrigerant flows along the refrigerant passage 35 when the temperature of the barrel 20 exceeds a predetermined upper limit value, and forcibly cools the barrel 20.
  • the other end portion along the axial direction of the barrel 20 is closed by a head portion 36.
  • the head portion 36 has a discharge port 36a.
  • the discharge port 36 a is located on the opposite side of the supply port 34 along the axial direction of the barrel 20 and is connected to the third extruder 4.
  • the screw 21 includes a screw body 37.
  • the screw main body 37 of the present embodiment includes a single rotating shaft 38 and a plurality of cylindrical cylinders 39.
  • the rotary shaft 38 includes a first shaft portion 40 and a second shaft portion 41.
  • the first shaft portion 40 is located at the base end of the rotating shaft 38 that is on the one end portion side of the barrel 20.
  • the first shaft portion 40 includes a joint portion 42 and a stopper portion 43.
  • the joint part 42 is connected to a drive source such as a motor via a coupling (not shown).
  • the stopper portion 43 is provided coaxially with the joint portion 42.
  • the stopper portion 43 has a larger diameter than the joint portion 42.
  • the second shaft portion 41 extends coaxially from the end surface of the stopper portion 43 of the first shaft portion 40.
  • the second shaft portion 41 has a length that covers substantially the entire length of the barrel 20 and has a tip that faces the head portion 36.
  • a straight axis O1 that passes through the first shaft portion 40 and the second shaft portion 41 coaxially extends horizontally in the axial direction of the rotary shaft 38.
  • the second shaft portion 41 has a solid cylindrical shape having a diameter smaller than that of the stopper portion 43. As shown in FIG. 7, a pair of keys 45 a and 45 b are attached to the outer peripheral surface of the second shaft portion 41. The keys 45 a and 45 b extend in the axial direction of the second shaft portion 41 at positions shifted by 180 ° in the circumferential direction of the second shaft portion 41.
  • each cylindrical body 39 is configured such that the second shaft portion 41 penetrates coaxially.
  • a pair of key grooves 49 a and 49 b are formed on the inner peripheral surface of the cylindrical body 39.
  • the key grooves 49 a and 49 b extend in the axial direction of the cylinder 39 at positions shifted by 180 ° in the circumferential direction of the cylinder 39.
  • the cylindrical body 39 is inserted onto the second shaft portion 41 from the direction of the tip of the second shaft portion 41 with the key grooves 49a and 49b aligned with the keys 45a and 45b of the second shaft portion 41.
  • the first collar 44 is interposed between the cylindrical body 39 inserted first on the second shaft portion 41 and the end surface of the stopper portion 43 of the first shaft portion 40. Furthermore, after all the cylinders 39 are inserted on the second shaft portion 41, the fixing screw 52 is screwed into the distal end surface of the second shaft portion 41 via the second collar 51.
  • each cylinder 39 is a component that defines the outer diameter D1 (see FIG. 7) of the screw body 37. That is, the outer diameters D1 of the cylindrical bodies 39 coupled coaxially along the second shaft portion 41 are set to be the same.
  • the outer diameter D1 of the screw body 37 (each cylinder 39) is a diameter defined through the axis O1 that is the rotation center of the rotation shaft 38.
  • the segment type screw 21 in which the outer diameter D1 of the screw body 37 (each cylinder 39) is a constant value is configured.
  • the segment type screw 21 can hold a plurality of screw elements in a free order and combination along the rotation shaft 38 (that is, the second shaft portion 41).
  • a screw element for example, a cylindrical body 39 in which at least a part of flights 84 and 86 described later is formed can be defined as one screw element.
  • segment type screw 21 is accommodated coaxially in the cylinder portion 33 of the barrel 20.
  • a screw main body 37 in which a plurality of screw elements are held along the rotation shaft 38 (second shaft portion 41) is rotatably accommodated in the cylinder portion 33.
  • the first shaft portion 40 (the joint portion 42 and the stopper portion 43) of the rotating shaft 38 protrudes from the one end portion of the barrel 20 to the outside of the barrel 20.
  • a conveyance path 53 for conveying the raw material is formed between the outer peripheral surface along the circumferential direction of the screw main body 37 and the inner peripheral surface of the cylinder portion 33.
  • the conveyance path 53 has an annular cross-sectional shape along the radial direction of the cylinder portion 33, and extends in the axial direction of the cylinder portion 33.
  • the screw body 37 has a plurality of conveying portions 81 for conveying the raw material and a plurality of barrier portions 82 for restricting the flow of the raw material. That is, a plurality of conveying portions 81 are disposed at the base end of the screw body 37 corresponding to one end portion of the barrel 20, and a plurality of conveying portions 81 are disposed at the distal end of the screw body 37 corresponding to the other end portion of the barrel 20. Yes. Furthermore, between these conveyance parts 81, the conveyance part 81 and the barrier part 82 are alternately arranged in the axial direction from the base end of the screw main body 37 toward the front end.
  • the supply port 34 of the barrel 20 is opened toward the conveyance part 81 arrange
  • Each conveyance part 81 has the flight 84 twisted helically.
  • the flight 84 protrudes from the outer peripheral surface along the circumferential direction of the cylindrical body 39 toward the conveyance path 53.
  • the flight 84 is twisted so as to convey the raw material from the proximal end of the screw body 37 toward the distal end when the screw 21 rotates counterclockwise when viewed from the proximal end of the screw body 37.
  • the flight 84 is twisted to the right in the same way as the right-handed screw.
  • Each barrier portion 82 has a flight 86 twisted in a spiral.
  • the flight 86 projects from the outer peripheral surface along the circumferential direction of the cylindrical body 39 toward the conveyance path 53.
  • the flight 86 is twisted so as to convey the raw material from the distal end of the screw body 37 toward the proximal end when the screw 21 rotates counterclockwise when viewed from the proximal end of the screw body 37.
  • the flight 86 is twisted to the left in the same manner as the left-handed screw.
  • the twist pitch of the flight 86 of each barrier section 82 is set to be the same as or smaller than the twist pitch of the flight 84 of the transport section 81. Further, a slight clearance is secured between the tops of the flights 84 and 86 and the inner peripheral surface of the cylinder part 33 of the barrel 20.
  • the clearance between the outer diameter portion of the barrier portion 82 (the top portion of the flight 86) and the inner peripheral surface of the cylinder portion 33 is preferably set in a range of 0.1 mm or more and 2 mm or less. More preferably, the clearance is set in a range of 0.1 mm or more and 0.7 mm or less. Thereby, it can restrict
  • the length of the conveying portion 81 along the axial direction of the screw body 37 is appropriately set according to the type of raw material, the degree of kneading of the raw material, the production amount of the kneaded material per unit time, and the like.
  • the conveyance unit 81 is a region where the flight 84 is formed on at least the outer peripheral surface of the cylinder 39, but is not specified as a region between the start point and the end point of the flight 84.
  • an area outside the flight 84 on the outer peripheral surface of the cylinder 39 may be regarded as the transport unit 81.
  • the transport unit 81 an area outside the flight 84 on the outer peripheral surface of the cylinder 39 may be regarded as the transport unit 81.
  • the spacer and the collar may be included in the transport unit 81.
  • the length of the barrier portion 82 along the axial direction of the screw main body 37 is appropriately set according to, for example, the type of raw material, the degree of kneading of the raw material, the production amount of the kneaded material per unit time, and the like.
  • the barrier unit 82 functions to block the raw material flow sent by the transport unit 81. That is, the barrier portion 82 is adjacent to the conveyance portion 81 on the downstream side in the material conveyance direction, and the material fed by the conveyance portion 81 passes through the clearance between the top of the flight 86 and the inner peripheral surface of the cylinder portion 33. It is configured to prevent you from doing.
  • the flights 84 and 86 project from the outer peripheral surface of the plurality of cylinders 39 having the same outer diameter D1 (see FIG. 7) toward the conveyance path 53.
  • the outer peripheral surface along the circumferential direction of each cylindrical body 39 defines the valley diameter of the screw 21.
  • the valley diameter of the screw 21 is maintained at a constant value over the entire length of the screw 21.
  • the screw main body 37 has a plurality of passages 88 extending in the axial direction of the screw main body 37.
  • a plurality of passages 88 are arranged in series at predetermined intervals along the conveying direction of the raw material along the axial direction (see the arrow X direction in FIG. 9). .
  • the passage 88 when the passage 88 is formed as one unit with one barrier portion 82 and two transport portions 81 sandwiching the barrier portion 82, the cylinder 39 and the barrier portions of both transport portions 81 are provided. It is formed straddling between 82 cylindrical bodies 39. In this case, the passages 88 are aligned in a line at a predetermined interval (for example, equal intervals) on the same straight line along the axial direction of the screw body 37.
  • the passage 88 is provided in a position deviated from the axis O1 of the rotating shaft 38 inside the cylinder 39.
  • the passage 88 is off the axis O1, and revolves around the axis O1 when the screw body 37 rotates.
  • the passage 88 is a hole having a circular cross-sectional shape, for example.
  • the inner diameter of the passage 88 is, for example, 1 mm or more and less than 8 mm, preferably 1 mm or more and less than 5 mm, and more preferably 3 mm.
  • the cylinder 39 of the transport part 81 and the barrier part 82 has a cylindrical wall surface 89 that defines a hole. That is, the passage 88 is a hole made only of a hollow space, and the wall surface 89 continuously surrounds the hollow passage 88 in the circumferential direction. Thereby, the channel
  • each passage 88 has an inlet 91, an outlet 92, and a passage body 93 that communicates between the inlet 91 and the outlet 92.
  • the inlet 91 and the outlet 92 are provided close to both sides of one barrier portion 82.
  • the passage main body 93 that communicates the inlet 91 and the outlet 92 is disposed across the barrier portion 82 in the screw main body 37.
  • the inlet 91 is opened on the outer peripheral surface near the downstream end of the conveyance unit 81
  • the outlet 92 is opened on the outer peripheral surface in the vicinity of the upstream end of the transport unit 81.
  • the passage main body 93 extends straight along the axial direction of the screw main body 37 without branching in the middle.
  • the drawing shows a state in which the passage main body 93 extends in parallel with the axis O1. Both sides of the passage body 93 are closed in the axial direction.
  • the outlet 92 of one passage 88 is disposed upstream of the inlet 91 of another passage 88 adjacent to the downstream side of the raw material conveyance direction (see the arrow X direction).
  • the inlet 91 is provided on one side of the passage main body 93, that is, on a portion near the base end of the screw main body 37.
  • the inlet 91 may be opened from the end surface on one side of the passage body 93 to the outer peripheral surface of the screw body 37, or a portion near the end surface on one side of the passage body 93, that is, in front of the end surface. You may make it open to the outer peripheral surface of the screw main body 37 from this part.
  • the opening direction of the inlet 91 is not limited to the direction orthogonal to the axis O1, but may be a direction intersecting the axis O1.
  • a plurality of inlets 91 may be provided by opening in a plurality of directions from one side of the passage main body 93.
  • the outlet 92 is provided on the other side of the passage main body 93 (on the opposite side to the one side), that is, on the portion near the tip of the screw main body 37.
  • the outlet 92 may be opened from the end surface on the other side of the passage body 93 to the outer peripheral surface of the screw body 37, or a portion near the end surface on the other side of the passage body 93, that is, in front of the end surface. You may make it open to the outer peripheral surface of the screw main body 37 from this part.
  • the opening direction of the outlet 92 is not limited to the direction orthogonal to the axis O1, but may be a direction intersecting the axis O1. In this case, a plurality of outlets 92 may be provided by opening from one side of the passage main body 93 in a plurality of directions.
  • the passage main body 93 that connects between the inlet 91 and the outlet 92 has a length that crosses the barrier portion 82 for each unit and straddles between the two transport portions 81 that sandwich the barrier portion 82. ing.
  • the diameter of the passage main body 93 may be set smaller than the diameters of the inlet 91 and the outlet 92 or may be set to the same diameter.
  • the passage cross-sectional area defined by the diameter of the passage main body 93 is set to be much smaller than the annular cross-sectional area along the radial direction of the annular conveyance path 53 described above.
  • the cylinder 39 in which at least a part of the flights 84 and 86 is formed is It can be paraphrased as a screw element.
  • the screw body 37 of the screw 21 can be configured by sequentially arranging a plurality of cylindrical bodies 39 as screw elements on the outer periphery of the rotating shaft 38.
  • the conveyance unit 81 and the barrier unit 82 can be exchanged or recombined according to the degree of kneading of the raw materials, and work at the time of exchange / recombination can be easily performed.
  • a plurality of cylinders 39 are tightened in the axial direction of the second shaft portion 41 so that the end surfaces of the adjacent cylinders 39 are brought into close contact with each other, whereby a passage body 93 of the passage 88 is formed.
  • the inlet 91 to the outlet 92 of the passage 88 are integrally communicated.
  • the first extruder 2 preliminarily kneads a plurality of resins.
  • the resin melted by this kneading becomes a fluid raw material and is continuously supplied from the first extruder 2 to the second extruder 3.
  • the raw material supplied to the second extruder 3 is thrown into the outer peripheral surface of the conveying portion 81 located on the base end side of the screw main body 37 as indicated by an arrow C in FIG.
  • the flight 84 of the transport unit 81 causes the raw material to flow into the screw main body 37 as shown by a solid line arrow in FIG. Convey continuously in the transport direction (arrow X direction) toward the tip.
  • the raw material subjected to the shearing action reaches the boundary between the conveyance unit 81 and the barrier unit 82 along the conveyance path 53.
  • the flight 86 of the barrier portion 82 is twisted leftward so as to convey the raw material from the distal end of the screw main body 37 toward the proximal end when the screw 21 rotates counterclockwise. As a result, the conveyance of the raw material is blocked by the flight 86. In other words, the flight 86 of the barrier portion 82 restricts the flow of the raw material conveyed by the flight 84 when the screw 21 rotates counterclockwise, so that the raw material is between the barrier portion 82 and the inner peripheral surface of the cylinder portion 33. Preventing you from passing through the clearance.
  • the pressure of the raw material is increased at the boundary between the transfer unit 81 and the barrier unit 82.
  • the filling rate of the raw material in the portion corresponding to the conveying portion 81 of the screw main body 37 in the conveying path 53 is represented by gradation. That is, in the conveyance path 53, the filling rate of the raw material increases as the color tone increases.
  • the filling rate of the raw material increases as it approaches the barrier portion 82, and the filling rate of the raw material reaches 100% immediately before the barrier portion 82. ing.
  • a “raw material reservoir R” having a raw material filling rate of 100% is formed immediately before the barrier portion 82.
  • the flow of the raw material is blocked, so that the pressure of the raw material increases.
  • the raw material whose pressure has risen continuously flows into the passage main body 93 from the inlet 91 opened at the downstream end of the conveying portion 81, as shown by the dashed arrows in FIGS.
  • the screw body 37 continuously circulates from the proximal end to the distal end.
  • the peripheral speed of the screw 21 is preferably 0.5 m / s or more and 3.0 m / s or less, and more preferably 0.63 m / s or more and 2.51 m / s or less.
  • the peripheral speed of the screw 21 indicates a peripheral speed at an arbitrary point on the tip surface of the flight 84 provided in the screw main body 37.
  • the front end surface of the flight 84 is a surface of the flight 84 that faces the inner peripheral surface of the cylinder portion 33.
  • the peripheral speed of the screw 21 indicates a speed (m / s) at which any one point on the front end surface of the flight 84 of the screw body 37 advances per unit time.
  • the peripheral speed at an arbitrary point on the front end surface of the flight 84 provided on the screw body 37 will be simply referred to as the peripheral speed of the screw 21.
  • the passage sectional area defined by the diameter of the passage body 93 is much smaller than the annular sectional area of the conveyance path 53 along the radial direction of the cylinder portion 33.
  • the spread area based on the diameter of the passage main body 93 is much smaller than the spread area of the annular conveyance path 53.
  • the passage cross-sectional area is sufficiently smaller than the annular cross-sectional area, the raw material accumulated in the raw material reservoir R will not disappear. That is, a part of the raw material accumulated in the raw material reservoir R flows into the inlet 91 continuously. During this time, new raw materials are sent toward the barrier portion 82 by the flight 84. As a result, the filling rate immediately before the barrier portion 82 in the raw material reservoir R is always maintained at 100%. At this time, even if a slight fluctuation occurs in the amount of the raw material conveyed by the flight 84, the fluctuation state is absorbed by the raw material remaining in the raw material reservoir R. As a result, the raw material can be continuously and stably supplied to the passage 88. Therefore, in the said channel
  • the raw material that has passed through the passage main body 93 flows out from the outlet 92 as shown by the solid line arrow in FIG. Thereby, the raw material continuously returns to the outer peripheral surface of the other conveyance unit 81 adjacent to the barrier unit 82 on the tip side of the screw body 37.
  • the returned raw material is continuously conveyed in the direction of the tip of the screw body 37 by the flight 84 of the other conveyance unit 81, and is subjected to a shearing action again in the process of this conveyance.
  • the raw material subjected to the shearing action continuously flows into the passage main body 93 from the inlet 91 of the next passage main body 93 adjacent to the downstream side in the transport direction, and is again subjected to the stretching action in the process of flowing through the passage main body 93.
  • a kneading process is performed in which the kneading of the raw material by the rotation of the screw 21 and the circulation of the raw material passage 88 are continuously repeated along the conveying direction (arrow X direction).
  • the plurality of transport portions 81 and the plurality of barrier portions 82 are alternately arranged in the axial direction of the screw body 37, and the plurality of passages 88 are arranged at intervals in the axial direction of the screw body 37.
  • the raw material charged into the screw main body 37 from the supply port 34 is continuously repeated in the direction from the proximal end to the distal end of the screw main body 37 while repeatedly receiving a shearing action and an extending action. In particular, it is transported in the transport direction (arrow X direction). Therefore, the degree of kneading of the raw material is strengthened, and the dispersion of the high molecular component (polypropylene) of the raw material is promoted.
  • tip of the screw main body 37 turns into fully kneaded material, and is continuously supplied to the 3rd extruder 4 from the discharge outlet 36a, and the gaseous substance contained in the said kneaded material And other volatile components are continuously removed from the kneaded product.
  • the second extruder 3 As described above, according to the present embodiment, in the second extruder 3, the raw material supplied from the first extruder 2 is transported in the axial direction (arrow X direction) of the screw body 37, and the raw material is processed in the course of this transport. A shearing action and an elongation action are repeatedly imparted to. That is, the second extruder 3 of the present embodiment is a kneading step in which the kneading of the raw material by the rotation of the screw 21 and the flow of the raw material passage 88 are continuously repeated along the conveying direction (arrow X direction). Execute.
  • the pressure is increased and the pressure is increased because the raw material is transported by the transport unit 81 by the barrier unit 82 by the transport path transporting process for transporting the raw material along the transport path.
  • the raw material was introduced into the passage from the inlet 91 located in the transport section 81, and the raw material that flowed into the passage was circulated in the same direction as the transport direction by the transport section 81 toward the outlet 92 and circulated through the passage.
  • a passage circulation step for allowing the raw material to flow out from the outlet 92 to the outer periphery of the screw body.
  • the shearing action and the elongation action are continuously and repeatedly applied to the raw material conveyed in the conveying direction X by the kneading step.
  • the raw material is repeatedly given shearing action and elongation action continuously without interruption. Therefore, it is considered that the degree of kneading of the raw material is enhanced and the dispersion of PP (polypropylene) contained in the raw material is promoted.
  • the raw material since the raw material does not circulate many times at the same location on the outer peripheral surface of the screw body 37, the raw material is transferred from the second extruder 3 to the third extruder 3. It can supply to the extruder 4 without interruption.
  • the raw material preliminarily kneaded by the first extruder 2 is continuously supplied to the second extruder 3 without interruption. For this reason, the flow of the raw material does not temporarily stagnate inside the first extruder 2. Thereby, the temperature change, the viscosity change, or the phase change of the resin that occurs when the kneaded raw material stays inside the first extruder 2 can be prevented. As a result, a raw material having a uniform quality can always be supplied from the first extruder 2 to the second extruder 3.
  • the present embodiment it is possible to perform complete continuous production of the kneaded material instead of apparent continuous production. That is, while the raw material is continuously and continuously conveyed from the first extruder 2 to the second extruder 3 and the third extruder 4, a shearing action is applied to the raw material in the second extruder 3. And elongation action can be alternately applied. According to such a configuration, the molten raw material is stably supplied from the first extruder 2 to the second extruder 3.
  • the passage 88 that imparts an extending action to the raw material extends in the axial direction of the screw main body 37 at a position that is eccentric with respect to the axis O ⁇ b> 1 that is the rotation center of the screw main body 37. Revolves around the axis O1. In other words, the cylindrical wall surface 89 that defines the passage 88 revolves around the axis O1 without rotating about the axis O1.
  • the raw material passes through the passage 88, the raw material is not actively stirred inside the passage 88. Therefore, the raw material that passes through the passage 88 is hardly subjected to a shearing action, and the raw material that passes through the passage 88 and returns to the outer peripheral surface of the conveyance unit 81 is mainly subjected to an elongation action. Therefore, also in the screw 21 of this embodiment, the location which gives a shearing action to a raw material, and the location which gives an extending
  • the material form is a pellet in which ethylene, propylene, diene rubber and talc are kneaded into polypropylene.
  • Example 1 In the first embodiment, the material is charged into the first extruder 2 in the high shear processing apparatus 1000, the raw material preliminarily kneaded by the first extruder 2 is kneaded by the second extruder 3, and the third The resulting mixture was defoamed with an extruder (defoaming machine) 4 to obtain a kneaded product.
  • Example 1 the second extruder 3 having the following apparatus conditions was used for kneading under the following kneading conditions.
  • the kneaded material 1 was produced by kneading the raw material with the second extruder 3 under the above apparatus conditions and kneading conditions.
  • Example 1 The kneaded material 1 produced in Example 1 was evaluated for mechanical properties. In the evaluation of mechanical properties, the kneaded product 1 produced using the second extruder 3 under the above apparatus conditions and the above kneading conditions was defoamed by the third extruder (defoaming machine) 4. The kneaded material 1 was used to evaluate mechanical properties.
  • each molded product of the material and the kneaded product 1 is a product obtained by molding the material and each kneaded product 1 after defoaming using an injection molding machine under conditions of a cylinder temperature of 200 ° C. and an injection speed of 40 mm / s. .
  • Charpy impact strength was measured as a mechanical property.
  • a notch was cut into each molded product of the material and the kneaded product 1 after defoaming with a cutting tool to prepare a Charpy impact test piece having a thickness of 3.0 mm as defined in JIS-K7111. Using this test piece, the impact value was measured by a method based on JIS-K7111. Ten measurements were performed and the average value was adopted.
  • the relative value of the Charpy impact strength of the molded product of the kneaded product 1 after defoaming was measured when the Charpy impact strength of the molded product of the material was set to the reference value “1”.
  • the Charpy impact strength of the molded product of the material was 18.28 kj / m 2 .
  • FIG. 12 shows an image of the kneaded material 1 produced in Example 1 after defoaming.
  • the degree of dispersion of PP in the kneaded product 1 after defoaming produced in Example 1 was 61.0%.
  • Example 2 Except for the point that the peripheral speed of the screw main body 37 in Example 1 was 1.26 m / s, the raw material was kneaded using the second extruder 3 under the same apparatus conditions and kneading conditions as in Example 1 to obtain a kneaded product. A kneaded product 2 was prepared. Then, in the same manner as in Example 1, mechanical properties were evaluated under the same conditions as in Example 1 using the kneaded material 2 after defoaming by the third extruder (defoaming machine) 4. The evaluation results are shown in FIG.
  • Example 3 Except for the point that the peripheral speed of the screw main body 37 in Example 1 was 1.88 m / s, the raw material was kneaded using the second extruder 3 under the same apparatus conditions and kneading conditions as in Example 1 to obtain a kneaded product. A kneaded product 3 was prepared. Then, in the same manner as in Example 1, mechanical properties were evaluated under the same conditions as in Example 1 using the kneaded product 3 after defoaming by the third extruder (defoaming machine) 4. The evaluation results are shown in FIG.
  • Example 4 In Example 1, except that the extrusion mass of the second extruder 3 was 10 kg / h and the peripheral speed of the screw body 37 was 2.51 m / s, the same apparatus conditions and kneading conditions as in Example 1 were used. The raw material was kneaded using the extruder 3 of No. 2, and the kneaded material 4 was produced as a kneaded material. Then, as in Example 1, mechanical properties were evaluated under the same conditions as in Example 1 using the kneaded product 4 after defoaming by the third extruder (defoaming machine) 4. The evaluation results are shown in FIG.
  • Comparative Example 1 About the 2nd extruder 3 used in Example 1, except using the 2nd extruder 3 of composition which is not provided with passage 88, and the point which made the peripheral speed of screw main body 37 0.38 m / s, The raw material was kneaded using the second extruder 3 under the same apparatus conditions and kneading conditions as in Example 1 to produce a comparative kneaded material 1. Then, in the same manner as in Example 1, mechanical properties were evaluated under the same conditions as in Example 1 using the comparative kneaded material 1 after defoaming by the third extruder (defoaming machine) 4. . The evaluation results are shown in FIG.
  • Comparative Example 2 About the 2nd extruder 3 used in Example 1, except using the 2nd extruder 3 of composition which is not provided with passage 88, and the point which made the peripheral speed of screw main body 37 0.63 m / s, The raw material was kneaded using the second extruder 3 under the same apparatus conditions and kneading conditions as in Example 1 to produce a comparative kneaded product 2. Then, in the same manner as in Example 1, mechanical properties were evaluated under the same conditions as in Example 1 using the comparative kneaded material 2 after defoaming by the third extruder (defoaming machine) 4. . The evaluation results are shown in FIG.
  • Example 3 About the 2nd extruder 3 used in Example 1, except using the 2nd extruder 3 of the composition which is not provided with passage 88, and the point which made the peripheral speed of screw main body 37 1.26 m / s, The raw material was kneaded using the second extruder 3 under the same apparatus conditions and kneading conditions as in Example 1 to produce a comparative kneaded product 3. Then, as in Example 1, mechanical properties were evaluated under the same conditions as in Example 1 using the comparative kneaded product 3 after defoaming by the third extruder (defoaming machine) 4. . The evaluation results are shown in FIG.
  • Example 4 About the 2nd extruder 3 used in Example 1, except using the 2nd extruder 3 of the composition which is not provided with passage 88, and the point which made the peripheral speed of screw main body 37 1.88 m / s, The raw material was kneaded using the second extruder 3 under the same apparatus conditions and kneading conditions as in Example 1 to produce a comparative kneaded product 4. Then, as in Example 1, the mechanical properties were evaluated under the same conditions as in Example 1 using the comparative kneaded product 4 after defoaming by the third extruder (defoaming machine) 4. . The evaluation results are shown in FIG.
  • Example 5 About the 2nd extruder 3 used in Example 1, except using the 2nd extruder 3 of the composition which is not provided with passage 88, and the point which made the peripheral speed of screw main body 37 2.51 m / s, The raw material was kneaded using the second extruder 3 under the same apparatus conditions and kneading conditions as in Example 1 to produce a comparative kneaded product 5. Then, as in Example 1, the mechanical properties were evaluated under the same conditions as in Example 1 using the comparative kneaded product 5 after defoaming by the third extruder (defoaming machine) 4. . The evaluation results are shown in FIG.
  • Comparative Example 6 The material was used as the comparative kneaded material 6 of Comparative Example 6. Then, mechanical properties were evaluated under the same conditions as in Example 1. The evaluation results are shown in FIG.
  • the kneaded materials 1 to 4 prepared in Examples 1 to 4 are the comparative kneaded materials 1 to 3 prepared in Comparative Examples 1 to 3, and the comparison materials.
  • the relative values of the Charpy measurement value and Charpy impact strength were high.
  • the Charpy measurement value of the comparative kneaded material 1 is 18.49 kj / m 2
  • the Charpy measurement values of the kneaded materials 1 to 4 prepared in Examples 1 to 4 are all A value of 18.5 kj / m 2 or more exceeding the Charpy measurement value of Comparative Kneaded Product 1 was exhibited.
  • Comparative Kneaded Product 4 and Comparative Kneaded Product 5 in the kneading process, the temperature of the raw material increased sharply compared to Examples 1 to 4 and thermally deteriorated, and the Charpy impact strength could not be measured. .
  • the kneaded materials 1 to 4 prepared in Examples 1 to 4 are compared with the comparative kneaded materials 1 to 5 and the comparative kneaded material 6 that are the materials prepared in Comparative Examples 1 to 5. In comparison, it was confirmed that a kneaded product having high mechanical properties was obtained.
  • the degree of dispersion of PP in the kneaded material 1 produced in Example 1 was 61.0% as described above (see FIG. 12).
  • the kneaded material 1 produced in Example 1 is a kneaded material containing a polypropylene resin composition, and is composed of a first phase composed of PP (black portion in FIG. 12), and EPDM. It was confirmed that the second phase containing white (the white and gray portions in FIG. 12) showed an interconnected structure in which they were interconnected.
  • the kneaded material 1 produced in Example 1 could not confirm the sea-island structure of the first phase and the second phase.
  • the degree of dispersion of PP in the comparative kneaded material 6 as a material was calculated using the same method as the calculation of the degree of dispersion in the kneaded material.
  • FIG. 13 shows an image of the material.
  • the degree of dispersion of PP in the material was 20.5%.
  • the material is composed of the second phase containing EPDM (white and gray portions in FIG. 13) as the sea phase, and the first phase made of polypropylene (black portion in FIG. 13) as the island phase.
  • the sea-island structure was confirmed, and the interconnected structure of these first and second phases could not be confirmed.
  • the kneading method of the present invention is a resin composition of virgin pellets that are produced by kneading a material containing, for example, two types of incompatible resins with a conventional twin-screw extruder and are generally commercially available. It can also be said to be a re-kneading method for improving physical properties.
  • re-kneading of virgin pellets by the kneading method of the present invention can be regarded as upgrade kneading, and pellets produced by upgrade kneading and having improved physical properties as compared with virgin pellets can be regarded as upgrade pellets.
  • the upgrade kneading by the kneading method of the present invention can be applied to plastic recycling in which, for example, the recovered resin composition is pulverized and melted to produce recycled raw materials such as recycled pellets. It is easily understood that the regenerated pellets produced by the upgrade kneading of the pulverized material by the kneading method of the present invention become upgraded regenerated pellets having improved physical properties as compared with the time of the pulverized material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Ce procédé de malaxage inclut : une étape de transport de trajet de transport dans laquelle une matière première est transportée le long d'un trajet de transport ; et une étape d'écoulement de canal dans laquelle la pression de la matière première est augmentée par la restriction, par une section de paroi d'obstruction (82), de transport par une section de transport (81), la matière première ayant une pression élevée est amenée à s'écouler à partir d'une entrée (91) située dans la section de transport (81) dans un canal (88), la matière première qui s'est écoulée dans le canal (88) est amenée à s'écouler en direction d'une sortie (92) dans la même direction que la direction de transport par la section de transport (81), et la matière première qui s'est écoulée à travers le canal (88) est amenée à s'écouler de la sortie (92) vers la périphérie externe d'un corps principal de vis (37). La matière première est une composition de résine à base de polypropylène qui contient du polypropylène et un caoutchouc d'oléfine.
PCT/JP2019/012613 2018-04-09 2019-03-25 Procédé de malaxage et matériau malaxé Ceased WO2019198479A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201980023661.7A CN112203818B (zh) 2018-04-09 2019-03-25 混炼方法和混炼物
KR1020207028438A KR102390358B1 (ko) 2018-04-09 2019-03-25 혼련 방법 및 혼련물
US17/045,242 US20210362374A1 (en) 2018-04-09 2019-03-25 Method of kneading and kneaded material

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2018-074785 2018-04-09
JP2018074785 2018-04-09
JP2018109050A JP7093681B2 (ja) 2018-04-09 2018-06-06 混練方法および混練物
JP2018-109050 2018-06-06

Publications (1)

Publication Number Publication Date
WO2019198479A1 true WO2019198479A1 (fr) 2019-10-17

Family

ID=68164178

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/012613 Ceased WO2019198479A1 (fr) 2018-04-09 2019-03-25 Procédé de malaxage et matériau malaxé

Country Status (2)

Country Link
KR (1) KR102390358B1 (fr)
WO (1) WO2019198479A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210316492A1 (en) * 2014-10-27 2021-10-14 Shibaura Machine Co., Ltd. Screw for extruder comprising a passage crossing over between adjacent cylindrical bodies
US20210354362A1 (en) * 2014-05-08 2021-11-18 Shibaura Machine Co., Ltd. Extruder screw having paths within the screw, extruder, and extrusion method
CN116829320A (zh) * 2021-08-31 2023-09-29 芝浦机械株式会社 纤维强化复合材料的制造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10272624A (ja) * 1997-03-31 1998-10-13 Tokyo Ink Kk 熱可塑性樹脂組成物の製造方法
JPH11310667A (ja) * 1998-04-27 1999-11-09 Asahi Denka Kogyo Kk 自動車内外装材
JP2007276321A (ja) * 2006-04-10 2007-10-25 Japan Steel Works Ltd:The タンデム型押出発泡成形方法
JP2015227052A (ja) * 2014-05-08 2015-12-17 東芝機械株式会社 混練装置および混練方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10272624A (ja) * 1997-03-31 1998-10-13 Tokyo Ink Kk 熱可塑性樹脂組成物の製造方法
JPH11310667A (ja) * 1998-04-27 1999-11-09 Asahi Denka Kogyo Kk 自動車内外装材
JP2007276321A (ja) * 2006-04-10 2007-10-25 Japan Steel Works Ltd:The タンデム型押出発泡成形方法
JP2015227052A (ja) * 2014-05-08 2015-12-17 東芝機械株式会社 混練装置および混練方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210354362A1 (en) * 2014-05-08 2021-11-18 Shibaura Machine Co., Ltd. Extruder screw having paths within the screw, extruder, and extrusion method
US11813785B2 (en) * 2014-05-08 2023-11-14 Shibaura Machine Co., Ltd. Extruder screw having paths within the screw, extruder, and extrusion method
US20210316492A1 (en) * 2014-10-27 2021-10-14 Shibaura Machine Co., Ltd. Screw for extruder comprising a passage crossing over between adjacent cylindrical bodies
US11820062B2 (en) * 2014-10-27 2023-11-21 Shibaura Machine Co., Ltd. Extrusion methods wherein material is guided through a passage crossing over between adjacent cylindrical bodies
CN116829320A (zh) * 2021-08-31 2023-09-29 芝浦机械株式会社 纤维强化复合材料的制造方法

Also Published As

Publication number Publication date
KR102390358B1 (ko) 2022-04-25
KR20200126417A (ko) 2020-11-06

Similar Documents

Publication Publication Date Title
JP2019181913A (ja) 混練方法および混練物
JP7397451B2 (ja) 導電性複合材料の製造方法
KR101949004B1 (ko) 혼련 장치 및 혼련 방법
JP6446310B2 (ja) 押出機用スクリュ、押出機および押出方法
TWI754935B (zh) 含有再生碳纖維的碳纖維複合材料、成形體及碳纖維複合材料的製造方法
TWI602672B (zh) 擠壓機用螺旋桿、擠壓機及擠壓方法
JP6446234B2 (ja) 押出機用スクリュ、スクリュエレメント、押出機および押出方法
CN101247932B (zh) 异向旋转双螺杆挤出机
KR101868253B1 (ko) 압출기용 스크루와 압출기 및 압출 방법
TW201615277A (zh) 擠壓機用螺旋桿和擠壓機及擠壓方法
US8753003B2 (en) Screw feed elements for extrusion of viscoelastic masses
WO2019198479A1 (fr) Procédé de malaxage et matériau malaxé
JP7382047B2 (ja) 繊維強化複合材料の製造方法
CN120228830A (zh) 脱挥用挤出机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19784999

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20207028438

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19784999

Country of ref document: EP

Kind code of ref document: A1